The knee is the largest joint in your body and the one that bears most of your weight. Because of this, it’s a tough —and sometimes problem-prone — joint. When you’re feeling knee pain, how do you know what caused it? Your doctor’s diagnosis is the ultimate answer, but there are some clues ...

What You Need To Know About Knee Injuries From ligament, tendon and cartilage tears to runner’s knee and various pain syndromes, most everyone has known someone who has had a dreaded knee injury. In fact, knee injuries are the second most common sports injury accounting for more than five milli...